Nice post and I agree to an extent.
It ultimately boils down to some questions and I'm going to bold it so its out there and clear:
What does Sony have to bring to the industry?
PSN, their first party lineup, connectivity with their handhelds
Why should they bother making another console?
To continue the above mentioned things, because the console industry is a billion dollar industry. You make more selling consoles and accessories, ontop of games than just selling games. For the average developer. They want to control the living room, Sony is a consumer home electronics company who have been gunning for the living room since forever. They bow out of the console race then leave that center piece open for MS to take.
What innovations will Sony bring to their next console?
What innovations did Sony bring to PS3? Cell? It's barely used by third party developers, which in turn gave PS3 gamers gimped games.
So I'm saying their biggest strength in bringing hardware innovation is now gone by going the traditional route.
How is it a strength when it turned out to be their weakpoint this generation?
Vita made a lot of sense. It's very different than smartphones and the 3DS. It's got a lot of hardware innovation going for it. The unit OS though does very little to advance gaming though. But it doesn't need to since it has a lot going for it.
How? It's using off the shelf ARM parts that'll be outdated this time next year How is that hardware innovation?. I mean hell iPad3 or whatever people are calling it, is using the same Quad GPU without vRAM but more available system ram. Unless you're going to say while the hardware itself might not be exotic it's the way they're using it. I'll go ahead and say...the samething will apply to PS4.
3 "PCs in a box" coming out soon. MS going to bring its innovation through the OS with new ideas just like was saw with Xbox Live Arcade and Achievements the last time around. Valve is going to bring all the good stuff they've done for PC gaming into a console box.
Sony for the most part has lagged in these areas and haven't shown the same vision in this respect. So what are they going to bring?
What's going to make the Sony box different than the MS box or Valve box? 1st party games? That's it?
Other than Cell what did Sony bring with PS3? Because by your definition, the games, connectivity, media abilities don't count.
Here's my counter argument. How is bragging about having exotic hard to develop for hardware going to help Sony move units? WHY is having exotic hard to develop for hardware good for Sony? Why is having exotic hard to develop for hardware something Sony needs in your eyes? Why is spending money on exotic hardware R&D that ends up being even in power to off the shelf components (PS3/360 as an example) good for Sony? MS has been able to drop the price on their hardware quicker with more margin for profit than Sony. Hell right now Sony struggles to move Cell to 28nm. How is this good for Sony?
We're going to have to agree to disagree, because I believe the notion of having exotic hard to develop for hardware just for the sake of having it as a bragging point is honestly the dumbest thing Sony can do. The only thing that will accomplish is having a repeat of this generation. I'm not sure why ANY gamer would want that at all. I don't know about you but I don't like having inferior gaming experiences (I'm actually a PC gamer but whatever) just so I can brag about some OMGWTF processor.
Then in again what is the point of exotic hard to develop for hardware when it ends up being inferior to these off the shelf parts? What's the point when they cost more to manufacturer? What's the point when Sony has to spend MORE to get equal or less performance?
In short, I just don't understand your logic at all.